n = int(input())
if n >= 400 and n <= 599:
  kyu = 8
elif n >= 600 and n <= 799:
  kyu = 7
elif n >= 800 and n <= 999:
  kyu = 6
elif n >= 1000 and n <= 1199:
  kyu = 5
elif n >= 1200 and n <= 1399:
  kyu = 4
elif n >= 1400 and n <= 1599:
  kyu = 3
elif n >= 1600 and n <= 1799:
  kyu = 2
elif n >= 1800 and n <= 1999:
  kyu = 1
print(kyu) n = int(input()) n int(input()) int input() input if n >= 400 and n <= 599:
  kyu = 8
elif n >= 600 and n <= 799:
  kyu = 7
elif n >= 800 and n <= 999:
  kyu = 6
elif n >= 1000 and n <= 1199:
  kyu = 5
elif n >= 1200 and n <= 1399:
  kyu = 4
elif n >= 1400 and n <= 1599:
  kyu = 3
elif n >= 1600 and n <= 1799:
  kyu = 2
elif n >= 1800 and n <= 1999:
  kyu = 1 n >= 400 and n <= 599 n >= 400 n 400 n <= 599 n 599 kyu = 8 kyu 8 elif n >= 600 and n <= 799:
  kyu = 7 n >= 600 and n <= 799 n >= 600 n 600 n <= 799 n 799 kyu = 7 kyu 7 elif n >= 800 and n <= 999:
  kyu = 6 n >= 800 and n <= 999 n >= 800 n 800 n <= 999 n 999 kyu = 6 kyu 6 elif n >= 1000 and n <= 1199:
  kyu = 5 n >= 1000 and n <= 1199 n >= 1000 n 1000 n <= 1199 n 1199 kyu = 5 kyu 5 elif n >= 1200 and n <= 1399:
  kyu = 4 n >= 1200 and n <= 1399 n >= 1200 n 1200 n <= 1399 n 1399 kyu = 4 kyu 4 elif n >= 1400 and n <= 1599:
  kyu = 3 n >= 1400 and n <= 1599 n >= 1400 n 1400 n <= 1599 n 1599 kyu = 3 kyu 3 elif n >= 1600 and n <= 1799:
  kyu = 2 n >= 1600 and n <= 1799 n >= 1600 n 1600 n <= 1799 n 1799 kyu = 2 kyu 2 elif n >= 1800 and n <= 1999:
  kyu = 1 n >= 1800 and n <= 1999 n >= 1800 n 1800 n <= 1999 n 1999 kyu = 1 kyu 1 print(kyu) print kyu kyu = 8 8 kyu kyu = 7 7 kyu kyu = 6 6 kyu kyu = 4 4 kyu kyu = 5 5 kyu n = int(input()) int(input()) n kyu = 3 3 kyu kyu = 2 2 kyu kyu = 1 1 kyu
n = int(input())
if n >= 400 and n <= 599:
  kyu = 8
elif n >= 600 and n <= 799:
  kyu = 7
elif n >= 800 and n <= 999:
  kyu = 6
elif n >= 1000 and n <= 1199:
  kyu = 5
elif n >= 1200 and n <= 1399:
  kyu = 4
elif n >= 1400 and n <= 1599:
  kyu = 3
elif n >= 1600 and n <= 1799:
  kyu = 2
elif n >= 1800 and n <= 1999:
  kyu = 1
print(kyu)